Rehabilitation Research and Practice / 2012 / Article / Tab 3 / Clinical Study
Electromyographical Comparison of Four Common Shoulder Exercises in Unstable and Stable Shoulders Table 3 Prone external rotation descriptive analysis with mean (Mn) and standard deviation (SD) values were reported to be divided into six
arcs. The results of each Kruskal-Wallis test are presented at the end of each column for the respective muscle and arc.
0–
30–
60–
90–
60–
30–
Mn Sd Mn Sd Mn Sd Mn Sd Mn Sd Mn Sd Supraspinatus Healthy 9 (8) 14 (13) 21 (16) 16 (12) 8 (9) 5 (6) GL 10 (10) 19 (17) 29 (19) 18 (12) 11 (11) 14 (9) MDI 8 (6) 13 (11) 20 (17) 16 (14) 9 (9) 4 (7) AI 8 (13) 14 (17) 30 (27) 21 (22) 10 (13) 7 (15)
= 0.68 0.56 0.47 0.88 0.92 0.83 Infraspinatus Healthy 16 (6) 31 (9) 63 (22) 33 (12) 13 (5) 5 (2) GL 26 (11) 50 (19) 83 (19) 49 (16) 24 (12) 11 (9) MDI 18 (17) 42 (31) 83 (63) 49 (38) 20 (18) 8 (15) AI 18 (8) 37 (15) 56 (10) 35 (9) 20 (7) 8 (5)
= 0.14 0.08 0.07 0.13 0.04* 0.4 Teres major Healthy 3 (5) 3 (5) 7 (7) 4 (5) 2 (4) 5 (6) GL 5 (7) 6 (7) 8 (9) 7 (8) 5 (7) 5 (5) MDI 1 (2) 2 (1) 3 (2) 1 (2) 1 (1) 2 (2) AI 4 (5) 7 (9) 8 (10) 6 (7) 6 (8) 6 (8)
= 0.3 0.61 0.45 0.33 0.17 0.5 Middle deltoid Healthy 5 (4) 4 (4) 6 (6) 4 (4) 3 (3) 3 (3) GL 5 (5) 6 (7) 8 (10) 5 (5) 3 (2) 3 (2) MDI 3 (3) 4 (4) 4 (3) 3 (2) 2 (2) 2 (2) AI 6 (5) 6 (6) 12 (9) 9 (6) 5 (4) 4 (4)
= 0.57 0.86 0.4 0.22 0.77 0.39 Upper trapezius Healthy 2 (3) 3 (4) 4 (4) 2 (3) 1 (3) 0 (2) GL 3 (3) 5 (5) 7 (5) 7 (10) 3 (3) 2 (2) MDI 3 (5) 5 (5) 7 (5) 4 (4) 5 (11) 2 (6) AI 3 (4) 5 (5) 8 (7) 6 (7) 3 (6) 2 (4)
= 0.85 0.59 0.14 0.09 0.36 0.57 Serratus anterior Healthy 5 (5) 9 (5) 20 (14) 13 (9) 5 (4) 3 (5) GL 4 (4) 10 (9) 27 (22) 15 (10) 5 (4) 1 (1) MDI 3 (4) 7 (6) 14 (10) 9 (7) 3 (3) 1 (2) AI 3 (3) 8 (8) 23 (25) 14 (15) 5 (6) 1 (2)
= 0.83 0.58 0.51 0.6 0.75 0.73
* Indicates significant difference between groups.